Intussusception of the proximal appendix into the colon.
D000328:Adult; D001065:Appendix / Q000000981:diagnostic imaging*; D002429:Cecal Diseases / Q000000981:diagnostic imaging; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D007443:Intussusception / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography